Bogie



Feb. 28, 1933. E. c. GOEBERT ET AL BOGIE Fi1ed April 2, 1931 2 Sheets-Sheet INVENTORS Elmer l3 Euebart T'l-Lumus A Elm-11cm.

i7 WATTOR EY BOGIE Filed April 2, 1931 2 Sheets-Sheet 2 3 9/[& ll

.4 9 l 1 INVENTORS Elmer- IL Buahart BY Thomas Aflunlcm ATTORNEY Patented Feb. 28, 1933 ELMER C. GOEBERT, (8F THE UNITED STATES ARMY, PHILADELPHIA, PENNSYLVANIA, AND THOMAS A. CONLON, OF SILVER SPRING, MARYLAND BOGIE Application filed April 2, 1931. Serial No. 527,188.

(GRANTED UNDER THE ACT F MARCH 3, 1883, AS AMENDED APRIL 30, 1928; 370

The invention described herein may be manufactured and usedby or for the Government for governmental purposes, without the payment to us of any royalty thereon.

The subject of this invention is a bogie particularly adapted for carrying the trails of a gun carriage.

The main objects of the invention are the provision of a bogie having means for elevating and supporting a load; and having equalizing means associated with the wheels.

The objects are carried out broadly by pro viding on the bogie an element which may be lowered to engage the load and then elevated to raise the load to carrying position and further by providing an equalizer connected between the draw-bar coupling mem- 7 her and the wheels.

With the foregoing and other objects in view, the invention resides in the novel arrangement and combination of parts and 111 the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed may be made within the scope of what is claimed without departing from the spirit of the invention.

A practical embodiment of the invention is illustrated in the accompanying drawings, wherein:

Fig. 1 is a view in front elevation, parts shown in section, of the improved F 2 is a plan view of the bogie. Fig. 3 is a view in side elevation with the near wheel removed.

Fig. 4 is a sectional view on the line l4 of Fig. 2, the draw bar being removed.

Referring to the drawings by characters of reference:

The bogie comprises a crank axle 5 in the extremities of which are mounted king-pins 6 carrying the stub-axles on which are mounted the wheels 7. The axle 5 forms a guide for a housing or frame 8 that embraces the axle and has relative vertical movement with respect thereto.

The frame consists essentially of side plates 9, top plate 10, end plates 1111, and bottom plates 12-12. The frame is supported by a includes an outer pair of helical springs 1313, which, in order to secure maximum length, are seated on the outer arms 5a of the axle adjacent the oil'- sets 56. The end plate 11 of the frame and an internal plate 14 spaced from the end plate, constitute a partial housing for each spring, while the plate 14 in addition serves to bear against the'otfset 5b to prevent lateral movement of the frame.

The vertical movement of the frame under the action of the springs is restricted by engagement of the bottom plates 12 with the axle.

The frame conforms substantially to the outline of the crank axle, the side plates being recessed as seen in Fig. 1 to receive the load member or members 15 and thereby afford a maximum ground clearance.

Referring to Fig. 4, the top plate 10 of the frame and also the axle 5 are centrally aperturecl to accommodate a screw 16. A nut 17 having operating handles 18 is threaded on the screw and fitted on the'upper race 19 of an anti-friction roller bearing unit 20. The lower race 21 of the unit is supported on a curved seat 22 fitting in a saddle 23.

The saddle rests on the top plate 10 of the frame and has a depending annular flange 24 inserted in the aperture therein. The saddle wall 25, and an inner wall 26 formed by a sleeve threaded to the flange and spaced from the screw 16. These walls constitute an annular casing within which the bearing unit is disposed and they serveto confine lubricant supplied to the bearing.

The nut 17 on the screw 16 is confined by a collar 27 secured by screws 28 to a retaining ring 29 threaded externally on the outer wall of the saddle.

The retaining ring confines the hub 30 of an equalizer mounted on and supported by a bushing 31 embracing the saddle. The equalizer (Fig. 2) includes a pair of lateral arms 32 normally overlying the axle and a rear arm 33 connected to a block 34 to which steering rods 3535 are universally joined. The steering rods are also universally joined to the knuckles 3636 associated with the road wheels. I

The lateral arms 32 are connected by means springs seated on the arms "frame and parallel links 3737 to a yoke 38 which is thereby maintained parallel to the equalizer. The yoke is supported on and fixed to a pin 39, (Fig.4) retained in place by a washer 4&0 and nut 11. The pin is mounted vertically in a bracket 42 fast on one of the side plates 9 of the frame and is keyed or otherwise fixed to, a coupling member 43 to which the draw-bar is fastened.

As shown in Fig. 4 the rear arm 38 of'the equalizer is provided with a valve fitting a l for admitting lubricant which is conducted through the passage 45 in the arm and the passage l6 in the saddle of the bearing unit.

On the lower extremity of the screw 16 there is provided a load-engaging member which in the present instance consists of a transverse rod 47 projecting su'ificiently rom its bearing 16a to engage the load mem- In operation, the bogie is moved into position to overlie the load member, the rod 47 is engaged therewith, and the nut'17 turned to elevate the screw until the load member is fittedinto the recess of the frame. The load member is yieldingly supported during transportation and does not interfere with the steering mechanism. In lowering the load onto the ground it is only necessary to turn the'nut 17.

We claim: 7

1. In a bogie for supporting a load member, a crank axle, steering wheels on the arms of the axle, a frame fitting over the axle, of the crank axle and supporting the frame, means for limiting movement of the frame, a saddle mounted in the center of the frame, an antifriction bearing unit in the saddle, a nut on the hearing unit, a screw threaded in the nut and assing through the frame and axle, means on the saddle for confining the nut, a loadengaging member on the screw, an equalizer mounted on the saddle, and a connection between the steering wheels. and the equalizer.

2. In a bogie for supporting a load member,a crank axle,steering wheelson the arms of the axle, a frame fitting over the axle, springs seated on the arms of the crank axle and supporting the frame, means for limitin movement of the frame, a saddle mounted in the center of the frame, an anti-friction bearing unit in the saddle, a nut on the bearing unit, a screw threaded in .the nut and passing through the frame and axle, means on the saddle for confining the nut, and a load-engaging member on the screw.

3. In a bogie for supporting a load memof equal her, a wheeled axle, a frame fitting over the axle, springs snpportingthe frame on the axle, a saddle mounted in the center of the constituting an annular casing, means for admitting lubricant to the casing, an. anti-friction bearing unit in the casing, a nut on the bearing unit, a screw threaded in the nut and passing through the frame and axle, means on the saddle for confining the nut, and a load-engaging member on the screw.

4. In a bogie for supporting a load memher, a wheeled axle, a frame fitting over the axle, springs supportingthe frame on the axle, a saddle mounted in the center of the frame, an anti-friction'bearing unit in the casing, a nut on the bearing unit, a screw threaded in the nut and passing through the frame and axle, means on the saddle for confining the nut, and a load-engaging memher on the screw.

5. In a bogie, a wheeled axle, a frame, springs supporting the frame on the axle, and an elevating and depressing mechanism carried by the frame and passing through the axle.

6. In a bogie, an axle, steering wheels on the axle, universally jointed rodsconnecting the steering wheels, a frame, springs supporting the frame on the axle, and an equalizer mounted on the frame and connected centrally to the jointed rods.

ELM'ER C. GOEBERT. I THOMAS A. CONLON. 

